初中英语九年级 Unit 12 Section A(Grammar focus-4c) 教案.docx

1、Unit 12 Life is full of the unexpected.Section A (Grammar Focus4c)教案【教学目标】1学习掌握下列词汇：cream, workday, pie, show up, bean, market, by the end of2. 能比较流利地讲述自己曾经有的特别的经历。3. 巩固过去完成时的用法。4. 能比较流利地讲述自己曾经特别的一天，养成积极看待事物的积极心态。【重点难点】 【学习重点】1复习巩固Section A 部分所学的生词和词组，达到熟练运用的目标。2总结过去完成时的不同句型。【学习难点】过去完成时的用法。【教学过程】Ste

2、p 1 Warming-up1. Lets look at the pictures and fill in the blanks. .【设计意图】通过练习引出本节课即将学习的内容，为Grammar Focus做准备。 Step 2 Work on Grammar focusRead the sentences in grammar focus, and try to summarize the usage of the past perfect tense.Grammar1. 过去完成时的构成：助动词 had (用于各种人称和数) + 过去分词2. 过去完成时的含义：主要是表示在过去某个时间

3、，或是动作之前已经发生或完成的动作。也就是动作发生在过去的过去。3. 过去完成时的用法：(1) 表示“过去的过去”，通常由by引导的表示过去时间的短语或者从句做时间状语，或4.过去完成时的判断依据:1)由时间状语来判定：表示动作从过去持续到过去一段时间。与过去完成时连用的时间状语有： (1) by + 过去的时间点。I had finished reading the novel by nine oclock last night.昨天晚上九点前我已经读完这本小说了。2. 由“过去的过去”来判定： 过去完成时表示“过去的过去”，是指过去某一动作之前已经发生或完成的动作，即动作有先后关系，动作在

4、前的用过去完成时，在后的用一般过去时。这种用法常出现在： 宾语从句中: 当宾语从句的主句为一般过去时，且从句的动作先于主句的动作时，从句要用过去完成时。在told, said, knew, heard, thought等动词后的宾语从句。She said that she had seen the film before.她说她以前看过这电影。(2) 状语从句中: 在时间、条件、原因、方式等状语从句中，主、从句的动作发生有先后关系，动作在前的，要用过去完成时，动作在后的要用一般过去时。When I got to the station, the train had already left.

5、当我到达车站时，火车已经离开了。After he had finished his homework, he went to bed. 他完成作业以后，就上床睡觉了。【设计意图】让学生读句子，尝试在观察中总结所学的语法，老师再给予系统讲解。 Step 3 Work on 4aMake sentences using by the time or before.1. Tim went into the bathroom. Mary got up._2. The coffee became cold. I put cream in the coffee._3. The teacher collec

6、ted the math homework. I got to school._4. I completed the work for my boss. The workday ended._5. The movie started. I arrived at the cinema._6. My mother finished making the apple pie. I got home from my language course. Step 4 Work on 4b1.Fill in the blanks with the correct forms of the words in the box. Step 5 Work on 4cWrite two true statements and one false statement and ask their partner to guess the false statement. 【设计意图】在不同类型的练习活动中巩固本单元重要语法点。 【课堂小结】1.We have learnt the use of the past perfect tense.2. We have learnt some new words and expressions involving this part.【课堂训练】 PPT